.index-container {
    width: 1200px;
    height: 700px;
    margin: 60px auto;
    padding: 24px;
    background-color: #def3f9;
    border-radius: 10px;
    .welcome-area {
       position: absolute;
       top: 50%;
       left: 50%;
       transform: translate(-50%, -50%);
       text-align: center;
       .pic {
        width: 300px;
        height: 300px;
        border-radius: 150px;
        margin-bottom: 8px;
       }
       .title {
        font-size: 23px;
        margin-bottom: 24px;
       }
    }
}